/ Dictionary / Index J Janiculum: Meaning and Definition of Find definitions for: Ja•nic•u•lum Pronunciation: ( ju-nik'yu-lum), [key] — n. a ridge near the Tiber in Rome, Italy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Janice Janie Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language